In items 1-7, state whether each result is a positive number, a negative number, or 0. Do not actually perform the computation. 1. -16 + (-30) 2. -16 + 16 3. -(-16) 4. |-16| 5. -16 - (-30) 6. (-16) 7. (-16)(-30) In items 8-9, use the choices below to fill in each blank: add subtract multiply divide.

Q: Evaluate if x=4,8,3,-2 ∑x ∑x+1 ∑(x+1) 3∑x - 4

A: Given that  if x=4,8,3,-2

Q: Explain why in any digraph, the sum of all the in-degrees must equal the sum of the out-degrees.

A: To prove, the sum of all the in-degrees must equal to the sum of all out-degrees. In-degree of a…

Q: -(5-3)²+(8+2)-3(4-1)²=

A:

Q: Find 4-¹, if A = [3 3 O ] 3 -2 0 O [32] −3 0 - [²2] O −3 12 -=[ 132] -3-2 O 2 3 3 2

A:

Q: |-45 + 12| + (-36) + |8 + (-15)|

A: The expression is given by,

Q: Write out the equation for the given graph: y =

A:

Q: simplify 27 + (-24)(-9) - 28

A: This question is related to algebraic operations, we will solve it using given information.

Q: Evaluate  ( 3 . ( 5/6 ) - 1/2 )

A: ( 3 . ( 5/6 ) - 1/2 )

Q: 3 a₁ = (-1)²¹-¹12 (²) , n = 1,2,3...

A:

Q: What integer represents the overall change in position?

A: This is to understand the operation of signed integers. In particular one has to understand the…

Q: *1.5.11 Add. - 4+(-5) = 4 + (-5) =

A: Introduction: Integers are whole numbers (that is, numbers with no fractions) that include negative…

Q: Evaluate the following expression. -3[(-4)²-6(9-7)1² -31(-4)2-6(9-7)1²- (Simplify your answer.)

A: This question is based on BODMAS rule-:The brackets have to be solved first followed by powers or…

Q: 2. Write a division and multiplication expression to represent the diagram. Division Expression: 2 /…

A:

Q: y = 3x О 75 X = 25 y = о 325

A: Suppose the two observations Xand Y are in relation like Y= bx. If  X =a then the value of Y is…

Q: 1/4+1/5-1/6+1/7-1/8

A: Given, -1/4+1/5-1/6+1/7-1/8

Q: 1 +4 = 5 2 + 5 = 12 3 + 6 = 21 8 + 11= ?

A:

Q: -9 -3 -2 -6 3- 6. -4 -6 -8- -10+

A: Given,    The graph is shown below:

Q: -3 Ń L N 0 -2 -3 2 99 9

A: Given is the graph of a function.The objective is to determine its equation.If there is a hole in…

Q: -8-(-4) =

A: Formula we will use to solve                                                   -(-a) = a

Q: 1. (-2e-3*)4

A: 1 Given expression is −2e−3x4. We have to simplify the expression. −2e−3x4=−24e−3x4=16e−3x4 Hence,…

Q: Match the graphs to their equations (y + 3)? (x – 3)? +1 4 1 (y – 3)² (x – 3)? 1 a v %3D 4 1 – 3)?…

A:

Q: then A-1 A 7 -8

A: Where  is the transpose matrix of the cofactors.The expression for the cofactors is:

Q: 29) Simplify:-&ry

A: 29) To simplify

Q: Determine 1. OneN[-2, -2+] and 2. ₂EN(-2,-2 + 1/2]

A:

Q: Find 1 -+ 16 25 +(-1)28 48 528

A: The detailed solution is as follows below:

Q: (-10) - (+20) - (-30) + (-40) O -40 O -10 O 20 O -30

A:

Q: an= 5(-2)n-1 Find a 10

A: Given nth term of the sequence is an=5(-2)n-1 The task is to find a10

Q: (ii) Evaluate L-¹ {,2²9}. [2

A: Sol:- L-12s2+9 =L-123·3s2+32

Q: How is 10 and -10 similar

A:

Q: -3 -3 2 -5 9 -3 -2 2 = 4X – 3 8 - -7 -8

A:

Q: Find the next three terms in the pattern 9,4,-1,-6,-11

A: Given 9 ,4,-1,-6,-11

Q: -|- 54 |

A: As we know that x=xif x≥0-xif x<0This is the property of  modulus. see below the answer and…

Q: plify the following expression. -25 + 12-(-1) + 28

A: In this question, concept of simplification of expression is applied. Expression The term…

Q: Divide the following expressions   1. 3x²y/ xy   2. 6x⁵y⁴/ 2xy³   3. x²-2x-3/ x-1   4. x²+5x+6/ x+2

A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: 4. Multiply the following signed numbers: a. (-42x)(+2x) = b. (+8x)(-4x)(-3x) = c. (+7)(-4)(-4) =…

A: 4. We need to simplify the following expressions a. -42x+2xb. +8x-4x-3xc. +7-4-4d. +10-2-2+4

Q: then A-¹ = A -2 00 01 3 -5 00 7 4 1 20 4 1 1

A:

Q: (-3) + (-2) – (-1) O 4 6. O -4 -5 O 5

A: to find the following expression (-3) + (-2) - (-1)